Impedance
16 Ohm
Speaker diameter
14.8 mm
Sensitivity
127 dB (1K Hz)
Frequency range
20–20,000 Hz
Maximum power input
20 mW
Driver type
Dynamic
Wireless
Yes
Type of wireless transmission
Digital FM
Headphone socket
3.5 mm
Detachable cable
yes
Maximum range
Up to 40m
Music play time
12 hr
Battery life standby time
up to 7000 hrs
Charging time
2.5  hr
Number of batteries
Battery Type
Lithium polymer
Battery capacity
350 mAh
Dimensions
15.89 x 2.15 x 21.61 cm
Stethoscope Weight
0.065  kg
Docking Station Weight
0.112  kg

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